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# Meftal spas
## Overview
Meftal spas is a combination product containing mefenamic acid, a nonsteroidal anti-inflammatory drug (NSAID), and dicyclomine hydrochloride, an anticholinergic antispasmodic agent.
## Primary Indications
* Symptomatic relief of abdominal pain and cramps associated with gastrointestinal disorders, particularly spasmodic conditions.
* Management of dysmenorrhea.
## Adult Dosing
* **General:** 1 tablet (mefenamic acid 250 mg / dicyclomine hydrochloride 10 mg) every 8 hours, or as directed by a healthcare professional.
* **Maximum Dose:** Not explicitly established for the combination product, but individual component maximums should be considered. For mefenamic acid, typically 1500 mg daily for short-term use. For dicyclomine, typically 40 mg daily.
## Pediatric Dosing
* Dosing in pediatric patients is not well-established for this combination product. Mefenamic acid is generally not recommended for children under 12 years of age unless directed by a physician. Dicyclomine has variable dosing for pediatric populations, usually based on weight and indication, and requires careful medical supervision.
## Dose Adjustments
* **Renal Impairment:** Use with caution. Mefenamic acid is renally excreted and can cause renal damage. Dose reduction or avoidance may be necessary in moderate to severe renal impairment.
* **Hepatic Impairment:** Use with caution. Mefenamic acid can affect liver function.
* **Elderly:** Increased risk of adverse effects, particularly gastrointestinal bleeding and renal toxicity with mefenamic acid. Use lowest effective dose.
## Contraindications
* Hypersensitivity to mefenamic acid, dicyclomine, or other NSAIDs/anticholinergics.
* Active or history of gastrointestinal bleeding, ulceration, or perforation.
* Severe renal or hepatic impairment.
* Severe heart failure.
* Conditions where anticholinergics are contraindicated, such as glaucoma, prostatic hypertrophy, pyloric stenosis, or paralytic ileus.
* Asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs.
* Children under 12 years of age (for mefenamic acid component, unless specifically advised by a physician).
## Adverse Effects
* **Gastrointestinal:** Nausea, vomiting, diarrhea, constipation, abdominal pain, dyspepsia, gastrointestinal bleeding, ulceration, perforation.
* **Central Nervous System:** Dizziness, drowsiness, headache, confusion, nervousness.
* **Anticholinergic Effects (from dicyclomine):** Dry mouth, blurred vision, urinary retention, constipation, decreased sweating.
* **Cardiovascular:** Hypertension, edema, palpitations.
* **Renal:** Renal impairment, interstitial nephritis, papillary necrosis.
* **Hepatic:** Elevated liver enzymes, jaundice.
* **Hematologic:** Anemia, leukopenia, thrombocytopenia.
* **Dermatologic:** Rash, itching.
## Key Drug Interactions
* **Anticoagulants (e.g., warfarin):** Increased risk of bleeding with mefenamic acid.
* **Corticosteroids:** Increased risk of gastrointestinal ulceration and bleeding.
* **Other NSAIDs (including aspirin):** Increased risk of adverse effects, particularly gastrointestinal.
* **Selective Serotonin Reuptake Inhibitors (SSRIs) & Serotonin-Norepinephrine Reuptake Inhibitors (SNRIs):** Increased risk of gastrointestinal bleeding.
* **Diuretics and Antihypertensives:** Mefenamic acid can reduce their efficacy and increase the risk of renal damage.
* **Lithium:** Mefenamic acid can increase lithium levels.
* **Methotrexate:** Mefenamic acid can increase methotrexate toxicity.
* **Anticholinergic agents:** Additive anticholinergic effects.
* **Antacids:** May decrease absorption of mefenamic acid.
## Monitoring
* Monitor for signs and symptoms of gastrointestinal bleeding (e.g., melena, hematemesis).
* Monitor renal and hepatic function, especially with prolonged use or in at-risk patients.
* Monitor blood pressure.
* Assess for anticholinergic side effects.
* Monitor for signs of hypersensitivity reactions.
## Clinical Pearls
* Meftal spas should be used at the lowest effective dose for the shortest duration necessary.
* Take with food or milk to minimize gastrointestinal upset.
* Caution is advised in patients with pre-existing cardiovascular disease, hypertension, or risk factors for cardiovascular events.
* The anticholinergic component may mask symptoms of certain conditions or worsen others.
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***Disclaimer:** This information is intended for healthcare professionals. Always consult the most current prescribing information and product literature for complete details, as this summary may not be exhaustive and can change. Verification of current dosing and safety guidelines is essential before administration.*